计算力学学报2025，Vol.42Issue(5)：751-757,7.DOI:10.7511/jslx20240606002
基于多控制系数的压电智能结构减振优化设计
Optimization design of vibration reduction for piezoelectric intelligent structures based on multiple control coefficients
摘要
Abstract
Piezoelectric materials have advantages such as rapid actuation,ease of preparation,and low energy consumption.Using piezoelectric materials for vibration control can improve structural performance.Studies have shown that the distribution of piezoelectric materials can significantly impact control effectiveness.Many researchers use topology optimization techniques to optimize the layout of piezoelectric materials or control voltages.In the topology optimization of piezoelectric intelligent structures,introducing various control coefficients as design variables can achieve a larger design space and further enhance control efficiency.This paper studies the optimal distribution of control coefficients for piezoelectric layers under harmonic excitation based on the Discrete Material Optimization(DMO)method.Using a negative velocity feedback control strategy for active control,dynamic compliance is selected as the objective function to effectively measure the structural vibration level.The design variables are the negative velocity feedback control coefficients for each pair of piezoelectric sensors and actuators.Sensitivity analysis is conducted using the adjoint variable method.Finally,two numerical examples are provided to verify the correctness of the proposed method.关键词
压电智能结构/主动控制/离散材料优化/材料布局Key words
piezoelectric intelligent structure/active control/discrete material optimization/material lay-out分类
土木建筑引用本文复制引用
锁刘佳,杨燊,王泽,张晓鹏,王大志..基于多控制系数的压电智能结构减振优化设计[J].计算力学学报,2025,42(5):751-757,7.基金项目
广东省基础与应用基础研究基金(2022A1515240059) （2022A1515240059）
国家自然科学基金(12272077)资助项目. （12272077）
